Signal processing method and apparatus

Abstract

The application provides a signal processing method, relates to the technical field of communication, and is applied to a terminal device. The method comprises the following steps: receiving a first probe signal from a network device; determining a receiving phase difference according to the first probe signal; acquiring a receiving internal phase difference and a transmitting internal phase difference; and determining a transmitting phase difference according to the receiving phase difference, the receiving internal phase difference and the transmitting internal phase difference. The method provided in the application embodiment can be applied to a terminal device with multiple sets of transceiving hardware. The method splits a transmitting path into two parts, i.e., a transmitting channel and a path from an antenna to the network device. By acquiring the phase difference of the receiving channel, the phase difference of the transmitting channel and the overall receiving phase difference, the transmitting phase difference between different transmitting paths can be accurately calculated. The transmitting phase difference is applied to the transmitting diversity technology, which helps to enhance the uplink performance of the terminal device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a signal processing method and apparatus. BACKGROUND

[0002] A terminal device (e.g., a mobile phone) can be built-in with two sets of transport (TX) hardware and receive (RX) hardware. When the terminal device is weak in signal, due to the limited power of the terminal device, the signal transmitted by the terminal device to a network device relying on a single set of TX hardware can be distorted. To solve this problem, the terminal device can transmit the signal in a transmit diversity manner. That is, the terminal device can transmit the same signal to the network device by using the two sets of TX hardware respectively. In this way, the network device can superimpose the two received signals to obtain a signal with higher strength, avoiding signal distortion. Therefore, transmit diversity can improve the uplink coverage of the terminal device and enhance the uplink performance.

[0003] The two sets of TX hardware correspond to two transmission paths respectively, and there can be a phase difference between the two transmission paths, resulting in a phase difference between the two received signals by the network device, so the superimposed signal can still be distorted. Moreover, when the two received signals are exactly in opposite phase, the strength of the superimposed signal is even worse, that is, there is a negative yield after superposition.

[0004] The related technical solutions cannot determine the phase difference between the two transmission paths, so a cyclic delay diversity (CDD) scheme is used to periodically compensate. CDD can periodically change the phase difference between the signals transmitted by the two sets of TX hardware, and improve the strength of the superimposed signal as a whole. However, CDD cannot avoid the opposite phase condition, and still has a negative yield, which is limited to the improvement of uplink coverage.

[0005] Therefore, how to determine the phase difference between different transmission paths in the terminal device is a problem to be solved. SUMMARY

[0006] The present application provides a signal processing method, which can accurately determine the phase difference between different transmission paths, and is helpful to improve the uplink coverage and enhance the uplink performance.

[0007] In a first aspect, a signal processing method is provided. The method is applied to a terminal device, and the terminal device includes a first receive (RX) path, a first transmit (TX) path, a first antenna, a second RX path, a second TX path, and a second antenna. The first antenna is communicatively connected to the first RX path and the first TX path. The second antenna is communicatively connected to the second RX path and the second TX path. The method includes receiving a first probe signal from a network device, determining an RX phase difference based on the first probe signal, where the RX phase difference includes a phase difference between a first signal and a second signal. The first signal is the first probe signal received by the first RX path through the first antenna. The second signal is the first probe signal received by the second RX path through the second antenna, obtaining an RX internal phase difference and a TX internal phase difference, where the RX internal phase difference includes a phase difference between the first RX path and the second RX path. The TX internal phase difference includes a phase difference between the first TX path and the second TX path, and determining a TX phase difference based on the RX phase difference, the RX internal phase difference, and the TX internal phase difference. The TX phase difference includes a phase difference between a first TX path and a second TX path. The first TX path includes the first TX path and a path from the first antenna to the network device. The second TX path includes the second TX path and a path from the second antenna to the network device.

[0008] The method provided by the embodiments of the present application can be applied to a terminal device with multiple sets of transceiving hardware. The method splits a TX path into a TX path and a path from an antenna to a network device. By obtaining a phase difference of an RX path, a phase difference of a TX path, and an overall RX phase difference, a TX phase difference between different TX paths can be accurately calculated. The TX phase difference is applied to a transmit diversity technology, which helps to enhance the uplink performance of the terminal device.

[0009] With reference to the first aspect, in some implementations of the first aspect, the RX internal phase difference is obtained by sending a second probe signal to the first RX path and a third probe signal to the second RX path, where the phase of the second probe signal is the same as the phase of the third probe signal, and the RX internal phase difference is determined based on the second probe signal and the third probe signal.

[0010] In the embodiments of the present application, the RX internal phase difference can be determined by sending probe signals with the same phase to different RX paths. The method does not require additional devices, is easy to calculate, and improves the applicability of the signal processing method.

[0011] In some implementations of the first aspect, the terminal device further includes a power splitter, and the sending of the second probe signal to the first RX path and the sending of the third probe signal to the second RX path includes: sending the fourth probe signal to the power splitter; and processing the fourth probe signal by the power splitter to divide the fourth probe signal into the second probe signal and the third probe signal.

[0012] In the embodiments of the present application, one probe signal is divided into two probe signals by the power splitter, so that the RX path is probed. The method can use only one port of a radio frequency integrated circuit (RFIC), avoids occupying multiple ports, and avoids controlling multiple ports, which is conducive to reducing the failure rate and improving the reliability of the signal processing method.

[0013] In some implementations of the first aspect, the power splitter is connected to the first RX path in the same way as the power splitter is connected to the second RX path.

[0014] In the embodiments of the present application, the power splitter is connected to each RX path in the same way, which reduces the phase difference caused by probing, and the obtained RX internal phase difference is more accurate, thereby improving the accuracy of the signal processing method.

[0015] In some implementations of the first aspect, the RX internal phase difference is determined according to the second probe signal and the third probe signal, including: determining the RX internal phase difference according to a third signal and a fourth signal, wherein the third signal is a signal coupled according to the second probe signal, and the fourth signal is a signal coupled according to the third probe signal.

[0016] In the embodiments of the present application, the RX path is probed by the coupler. The signal processing method provided in the embodiments of the present application can use general devices, has a simple structure, and is easy to implement.

[0017] In some implementations of the first aspect, the TX internal phase difference is obtained by: sending a fifth probe signal through the first TX path and sending a sixth probe signal through the second TX path, wherein the fifth probe signal and the sixth probe signal have the same phase; and determining the TX internal phase difference according to the fifth probe signal and the sixth probe signal.

[0018] In the embodiments of the present application, the TX internal phase difference can be determined by sending probe signals with the same phase through different TX paths. The method does not require additional devices, is easy to calculate, and improves the applicability of the signal processing method.

[0019] With reference to the first aspect, in some implementations of the first aspect, the TX internal phase difference is determined according to the fifth probe signal and the sixth probe signal, including: the TX internal phase difference is determined according to a fifth signal and a sixth signal, wherein the fifth signal is a signal coupled according to the fifth probe signal, and the sixth signal is a signal coupled according to the sixth probe signal.

[0020] In the embodiments of the present application, the TX path is probed by the coupler. The signal processing method provided by the embodiments of the present application can use general devices, has a simple structure, and is easy to implement.

[0021] With reference to the first aspect, in some implementations of the first aspect, the method is applied to a time division duplexing (TDD) communication system.

[0022] The signal processing method provided by the embodiments of the present application can be applied to a TDD communication system and is widely applicable. Since the TDD communication system has the characteristic of "transmission-reception reciprocity", the RX external phase difference is equal to the TX external phase difference, and the TX phase difference can be conveniently calculated.

[0023] With reference to the first aspect, in some implementations of the first aspect, the method further includes: sending a seventh signal and an eighth signal to the network device according to the TX phase difference.

[0024] The signal processing method provided by the embodiments of the present application can first accurately obtain the TX phase difference between multiple TX paths, and then send multiple signals to the network device according to the TX phase difference. In the case that the network device is far away from the terminal device, the terminal device sends multiple signals, and the network device can superimpose these signals to improve the signal strength. Therefore, the signal processing method provided by the embodiments of the present application can improve the uplink coverage and enhance the uplink performance of the terminal device.

[0025] With reference to the first aspect, in some implementations of the first aspect, the seventh signal and the eighth signal are sent to the network device according to the TX phase difference, including: the seventh signal is sent to the network device through the first TX path; and the eighth signal is sent to the network device through the second TX path, wherein a phase difference between the eighth signal and the seventh signal is the TX phase difference.

[0026] In the embodiments of the present application, multiple signals with a transmission phase difference of the TX phase difference are transmitted, so that the transmission phase is completely coherent, and the signal power received by the network device is maximum. Therefore, the signal processing method provided by the embodiments of the present application can improve the uplink coverage and enhance the uplink performance of the terminal device.

[0027] In a second aspect, an embodiment of the present application provides a signal processing apparatus, comprising modules for implementing the first aspect or any possible implementation of the first aspect.

[0028] In a third aspect, a terminal device is provided, comprising: a first RX channel, a first TX channel, a first antenna, a second RX channel, a second TX channel and a second antenna, the first antenna being communicatively connected with the first RX channel and the first TX channel, the second antenna being communicatively connected with the second RX channel and the second TX channel; and the signal processing apparatus of the second aspect or any possible implementation of the second aspect, the signal processing apparatus being communicatively connected with the first RX channel, the first TX channel, the second RX channel and the second TX channel.

[0029] In a fourth aspect, a computing device is provided, comprising a processor and a memory, the processor being configured to execute instructions stored in the memory to cause the computing device to perform the signal processing method of the first aspect or any possible implementation of the first aspect.

[0030] In a fifth aspect, a computer program product is provided, comprising instructions which, when executed by a computing device, cause the computing device to perform the signal processing method of the first aspect or any possible implementation of the first aspect.

[0031] In a sixth aspect, a computer-readable storage medium is provided, comprising computer program instructions, which, when executed by a computing device, cause the computing device to perform the signal processing method of the first aspect or any possible implementation of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic architecture diagram of a communication system provided by an embodiment of the present application.

[0033] Figure 2 is a schematic block diagram of a radio frequency system provided by an embodiment of the present application.

[0034] Figure 3 is a schematic flow diagram of a signal processing method provided by an embodiment of the present application.

[0035] Figure 4 is a schematic block diagram of another radio frequency system provided by an embodiment of the present application.

[0036] Figure 5 is a schematic block diagram of still another radio frequency system provided by an embodiment of the present application.

[0037] Figure 6 is a schematic block diagram of a signal processing apparatus provided by an embodiment of the present application.

[0038] Figure 7 is a schematic block diagram of a computing device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the present application will be described below with reference to the drawings.

[0040] The present application will present various aspects, embodiments or features around a system which can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each of the various systems can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc., discussed in connection with the figures. Additionally, a combination of these approaches can be used.

[0041] In addition, in the embodiments of the present application, the words "example" "for example" and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as an "example" in the present application should not be interpreted as being more preferable or advantageous than other embodiments or design solutions. Rather, the word "example" is used to present concepts in a concrete manner.

[0042] The business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation to the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as new business scenarios appear.

[0043] In the present specification, the reference "one embodiment" or "some embodiments" and the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" "in some embodiments" "in other embodiments" "in additional embodiments" and the like, in various places in the specification are not necessarily all referring to the same embodiment, unless otherwise specifically noted. The terms "including", "containing" "having" and variations thereof mean "including but not limited to", unless otherwise specifically noted.

[0044] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) communication system, a future 5th generation (5G) system or a new radio (NR), etc. The technical solutions of the embodiments of the present application can also be applied to vehicle-to-x (V2X), wherein the V2X can include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc., long term evolution-vehicle (LTE-V), Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), long term evolution-machine (LTE-M), machine to machine (M2M), etc.

[0045] Figure 1 is a schematic architecture diagram of a communication system provided by the embodiments of the present application. As shown in Figure 1 , the communication system can include a network device 110 and a terminal device 120.

[0046] The terminal device 120 in the embodiments of the present application can refer to a user equipment (user equipment, UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device 120 in the embodiments of the present application can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN) and the like. The embodiments of the present application are not limited thereto, for example, the terminal device 120 can also be a terminal device in an internet of things (internet of things, IoT) system. IoT is an important part of future information technology development, and its main technical feature is to connect things through communication technology and network, so as to realize the intelligent network of man-machine interconnection and thing-thing interconnection.

[0047] The network device 110 in this embodiment can be a device for communicating with the terminal device 120. The network device 110 can be a base transceiver station (BTS) in a Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) system, a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved NodeB (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the network device 110 can be a relay station, access point, vehicle-mounted equipment, wearable device, or a network device in a future 5G network or a network device in a future evolved PLMN network, etc. The embodiments of this application are not limited to these.

[0048] With the development of communication technology, terminal devices (such as mobile phones) typically have two sets of built-in transmit (TX) hardware and receive (RX) hardware. The TX hardware can include a TX path and an antenna. The TX path refers to the part other than the antenna, and may include amplifiers, filters, RF switches, and other devices. Similarly, the RX hardware can include an RX path and an antenna. The RX path also refers to the part other than the antenna, and may also include amplifiers, filters, RF switches, and other devices. In some embodiments, a set of TX hardware and RX hardware can share one or a set of antennas.

[0049] Having two sets of built-in TX and RX hardware serves at least the following two purposes.

[0050] On the one hand, when the terminal device has a strong signal, it can send signals to the network device using a single set of TX hardware. In this way, two sets of TX hardware can send different signals to different network devices, or send different signals to the same network device, thereby increasing the throughput of the terminal device.

[0051] On the other hand, when the signal of the terminal device is weak, due to the limited power of the terminal device, the signal strength of the terminal device transmitted to the network device by relying on a single set of TX hardware can be small. To solve this problem, the terminal device can transmit signals in a way of transmit diversity. That is, the terminal device can transmit the same signal to the network device by using two sets of TX hardware respectively. In this way, the network device can superimpose the two received signals to obtain a signal with higher strength, avoid signal distortion, thereby improving the uplink coverage of the terminal device and enhancing the uplink performance.

[0052] However, the two sets of TX hardware correspond to two TX paths respectively, and there can be a phase difference between the two TX paths, which causes the two signals received by the network device to have a phase difference, so the superimposed signal can still be distorted. Moreover, when the two received signals are exactly in opposite phase, the strength of the superimposed signal is even worse, that is, there is a negative return after superposition.

[0053] The related technical solutions cannot determine the phase difference between the two TX paths, so a cyclic delay diversity (CDD) scheme is used to periodically compensate. CDD can periodically change the phase difference between the signals transmitted by the two sets of TX hardware, thereby improving the strength of the superimposed signal as a whole. However, CDD cannot avoid the opposite phase condition, and there is still a negative return, which limits the improvement of the uplink coverage.

[0054] Figure 2 is a schematic block diagram of a radio frequency system 200 provided by an embodiment of the present application. The radio frequency system 200 can be applied to a terminal device 120, and the terminal device 120 can include the radio frequency system 200.

[0055] The radio frequency system 200 can include a first RX path 220, a first TX path 230, a first antenna 260, a second RX path 240, a second TX path 250, and a second antenna 270. The first antenna 260 is in communication connection with the first RX path 220 and the first TX path 230, and the second antenna 270 is in communication connection with the second RX path 240 and the second TX path 250.

[0056] In some embodiments, the first antenna 260 is a main antenna, and the second antenna 270 is a diversity (DIV) antenna.

[0057] The radio frequency system 200 can further include a radio frequency integrated circuit (RFIC) 210, which can be communicatively connected with the first RX path 220, the first TX path 230, the second RX path 240, and the second TX path 250. The RFIC 210 can include a demodulator and a modulator. The demodulator can be configured to demodulate radio frequency signals received by the first RX path 220 and the second RX path 240 into baseband signals. The modulator can be configured to modulate baseband signals into radio frequency signals, which are transmitted through the first TX path 230 and the second TX path 250.

[0058] The first TX path 230 or the second TX path 250 can include a power amplifier (PA), a radio frequency switch, a filter, and the like. The power amplifier can amplify radio frequency signals output by the RFIC 210. The filter can filter radio frequency signals output by the RFIC 210. The filter can be a surface acoustic wave (SAW) filter, a bulk acoustic wave (BAW) filter, or the like, and the specific type of the filter is not limited in the present application. The radio frequency switch can switch paths, for example, the first antenna 260 can be connected with the first RX path 220, and the first antenna 260 can be switched to be connected with the first TX path 230 to achieve switching from a received signal to a transmitted signal.

[0059] The first RX path 220 or the second RX path 240 can include a filter, a low noise amplifier (LNA), a radio frequency switch, and the like. The meanings of the filter and the radio frequency switch can be referred to the foregoing, and will not be described herein. The LNA is an amplifier with a low noise coefficient, which can amplify radio frequency signals received by an antenna.

[0060] It should be noted that the above describes two sets of TX hardware and RX hardware as an example, but those skilled in the art can clearly understand that there can be more sets of TX hardware and RX hardware.

[0061] Figure 3 FIG. 3 is a schematic flowchart of a signal processing method 300 provided by an embodiment of the present application. Referring to FIG. 3, Figure 3 The method 300 can accurately determine the phase difference between different TX paths, which is helpful to improve uplink coverage and enhance uplink performance.

[0062] The method 300 can be performed by any device with computing capability, for example, can be performed by a signal processing device comprising some functional modules. The method 300 can be applied to the terminal device 120. The terminal device 120 can comprise the radio frequency system 200.

[0063] It can be understood that the method 300 can be applied to a radio frequency system with two sets of TX hardware and RX hardware, and can also be applied to a radio frequency system comprising more sets of TX hardware and RX hardware.

[0064] S310, receiving a first probe signal from the network device 110.

[0065] The first probe signal is any signal sent by the network device 110. The first probe signal can be a control signal or a data signal, and the type of the first probe signal is not limited in the present application. The first probe signal can be requested by the terminal device 120 to be sent by the network device 110, or can be received by the terminal device 120 when the network device 110 broadcasts. In other words, the present application also does not limit that the first probe signal is specially sent by the network device 110 to the terminal device 120.

[0066] S320, determining an RX phase difference according to the first probe signal, wherein the RX phase difference comprises a phase difference between a first signal and a second signal, the first signal is the first probe signal received by the first RX path 220 through the first antenna 260, and the second signal is the first probe signal received by the second RX path 240 through the second antenna 270.

[0067] The terminal device comprises two sets of RX hardware, so the same probe signal can be received according to the two sets of RX hardware respectively.

[0068] The first probe signal has a certain phase when it is sent by the network device 110. However, because the receiving path from the network device 110 to the first antenna 260 and the receiving path from the network device 110 to the second antenna 270 are different, when the first probe signal reaches the first antenna 260 and the second antenna 270 through the two receiving paths respectively, there is a phase difference between the signal located at the first antenna 260 and the signal located at the second antenna 270 (hereinafter referred to as RX external phase difference). Further, because the first RX path 220 and the second RX path 240 are also often different, there is also a phase difference between the first probe signal after passing through the first RX path 220 and the second RX path 240 (hereinafter referred to as RX internal phase difference).

[0069] The RX phase difference is a phase difference between the first signal and the second signal, and the RX phase difference can include a superposition of the RX external phase difference and the RX internal phase difference. It can be understood that the RX external phase difference and the RX internal phase difference are generally not cancelled out, and therefore the RX phase difference is often not 0.

[0070] S330, obtaining the RX internal phase difference and the TX internal phase difference, wherein the RX internal phase difference includes a phase difference between the first RX path 220 and the second RX path 240, and the TX internal phase difference includes a phase difference between the first TX path 230 and the second TX path 250.

[0071] Since the first TX path 230 and the second TX path 250 are often different, there is a phase difference between a signal when the radio frequency signal passes through the first TX path 230 to reach the first antenna 260 and a signal when the radio frequency signal passes through the second TX path 250 to reach the second antenna 270. This phase difference is referred to as the TX internal phase difference.

[0072] The following describes an embodiment of obtaining the RX internal phase difference with reference to the accompanying drawings.

[0073] In some embodiments, obtaining the RX internal phase difference includes: sending a second probe signal to the first RX path 220 and sending a third probe signal to the second RX path 240, wherein the phase of the second probe signal and the phase of the third probe signal are the same; and determining the RX internal phase difference according to the second probe signal and the third probe signal.

[0074] It can be understood that other ways can also be used to obtain the RX internal phase difference, and the application does not limit the way of obtaining the RX internal phase difference. For example, a probe signal with a preset phase difference can also be transmitted to the first RX path 220 and the second RX path 240. For another example, the RX internal phase difference can be obtained by theoretical estimation.

[0075] After the second probe signal passes through the first RX path 220 and the third probe signal passes through the second RX path 240, there will be a certain phase difference due to the difference between the first RX path 220 and the second RX path 240. The RFIC can demodulate the second probe signal and the third probe signal, and then determine the RX internal phase difference.

[0076] For example, one or more ports for transmitting the probe signal can be provided on the RFIC, and the probe signal is transmitted through the port. A coupler is provided at the front end of the first RX path 220, and the coupler is used to couple the transmitted probe signal to the first RX path 220 to form a loop. Correspondingly, a coupler can also be provided at the front end of the second RX path 240.

[0077] In the embodiments of the present application, the RX internal phase difference can be determined by sending the same-phase probe signals to different RX paths. The method does not need additional devices, is simple to calculate, and improves the applicability of the signal processing method.

[0078] Figure 4 is another schematic block diagram of a radio frequency system 200 provided by the embodiments of the present application.

[0079] Referring to Figure 4 In some embodiments, the terminal device further includes a power divider 280, wherein the sending of the second probe signal to the first RX path 220 and the sending of the third probe signal to the second RX path 240 include: sending the fourth probe signal to the power divider 280; and processing the fourth probe signal by the power divider 280 to divide the fourth probe signal into the second probe signal and the third probe signal.

[0080] It can be understood that the sending of the probe signals to different RX paths can also be achieved by other ways. For example, two interfaces can be arranged on the RFIC, and the two interfaces are used to send the probe signals to the first RX path 220 and the second RX path 240 respectively. That is, one interface is used to send the second probe signal to the first RX path 220, and the other interface is used to send the third probe signal to the second RX path 240.

[0081] The power divider is also called a power divider (power divider). The power divider can divide one signal into multiple signals. The embodiments of the present application do not limit the specific form of the power divider 280. For example, the power divider 280 can be an equal power divider or an unequal power divider.

[0082] In some embodiments, the second probe signal and the third probe signal have the same phase. In other embodiments, the phase difference between the second probe signal and the third probe signal is a preset phase difference.

[0083] In the embodiments of the present application, one probe signal is divided into two probe signals by the power divider, and the RX path is detected. The method can use only one port in the RFIC, avoids occupying multiple ports, and avoids controlling multiple ports, which is conducive to reducing the failure rate and improving the reliability of the signal processing method.

[0084] Referring to Figure 4 In some embodiments, the power divider 280 is connected to the first RX path 220 in the same way as the power divider 280 is connected to the second RX path 240.

[0085] The connection mode can include a wire, a model and a number of devices, etc. The same connection mode can also be understood as the phase difference of the two signals arriving at the first RX path 220 and the second RX path 240 respectively, which does not change relative to the phase difference when starting from the power divider 280.

[0086] In the embodiments of the present application, the connection mode of the power divider and each RX path is the same, which reduces the phase difference caused by detection, and the obtained RX internal phase difference is more accurate, thereby improving the accuracy of the signal processing method.

[0087] Further, according to the second detection signal and the third detection signal, the RX internal phase difference can be determined, which can include: determining the RX internal phase difference according to the third signal and the fourth signal, wherein the third signal is a signal coupled according to the second detection signal, and the fourth signal is a signal coupled according to the third detection signal.

[0088] For example, a coupler can be arranged at the front end of the first RX path 220, and the coupler is used to couple the transmitted detection signal to the first RX path 220. That is, the second detection signal can be coupled to obtain the third signal. Correspondingly, a coupler can also be arranged at the front end of the second RX path 240, and the coupler is used to couple the third detection signal to obtain the fourth signal.

[0089] In some embodiments, the model of the coupler at the front end of the first RX path 220 is the same as the model of the coupler at the front end of the second RX path 240. Further, other parameters of the coupler can also be the same.

[0090] In the embodiments of the present application, the detection of the RX path is realized by arranging the coupler. The signal processing method provided in the embodiments of the present application can use general devices, and the structure is simple and easy to implement.

[0091] The above introduces an embodiment of obtaining the RX internal phase difference, and the following introduces an embodiment of obtaining the TX internal phase difference.

[0092] In some embodiments, obtaining the TX internal phase difference includes: transmitting a fifth detection signal through the first TX path 230 and transmitting a sixth detection signal through the second TX path 250, wherein the phase of the fifth detection signal and the sixth detection signal is the same; and determining the TX internal phase difference according to the fifth detection signal and the sixth detection signal.

[0093] It can be understood that the TX internal phase difference can also be obtained in other ways, and the present application does not limit the way of obtaining the TX internal phase difference. For example, detection signals with a preset phase difference can also be transmitted to the first TX path 230 and the second TX path 250. For another example, the TX internal phase difference can be obtained by theoretical estimation.

[0094] The fifth probe signal passes through the first TX path 230 and the sixth probe signal passes through the second TX path 250, and since the first TX path 230 and the second TX path 250 are different, there is a certain phase difference. The RFIC can demodulate the fifth probe signal and the sixth probe signal, and then determine the TX internal phase difference.

[0095] For example, a coupler can be arranged at the front end of the first TX path 230, and the coupler is used to couple the transmitted probe signal to form a signal loop. Correspondingly, a coupler can also be arranged at the front end of the second TX path 250.

[0096] Figure 5 is another schematic block diagram of a radio frequency system 200 provided by an embodiment of the present application.

[0097] Referring to Figure 5 The radio frequency system 200 can further include a multi-receive (MRX) path 290. The MRX path can receive the coupled signals of the fifth probe signal and the sixth probe signal, and by demodulating the received signals, the TX internal phase difference can be obtained.

[0098] In the embodiment of the present application, the same phase probe signals are transmitted through different TX paths to determine the TX internal phase difference. This method does not require additional devices, is simple to calculate, and improves the applicability of the signal processing method.

[0099] Further, determining the TX internal phase difference according to the fifth probe signal and the sixth probe signal can include: determining the TX internal phase difference according to the fifth signal and the sixth signal, wherein the fifth signal is a signal coupled from the fifth probe signal, and the sixth signal is a signal coupled from the sixth probe signal.

[0100] For example, referring to Figure 5 The MRX path can receive the fifth signal and the sixth signal to determine the TX internal phase difference.

[0101] In the embodiment of the present application, the coupler is arranged to realize the probe of the TX path. The signal processing method provided by the embodiment of the present application can use general devices, has a simple structure, and is easy to implement.

[0102] S340, determining a TX phase difference according to the RX phase difference, the RX internal phase difference, and the TX internal phase difference, wherein the TX phase difference includes a phase difference between a first TX path and a second TX path, the first TX path includes the first TX path and a path from the first antenna to the network device, and the second TX path includes the second TX path and a path from the second antenna to the network device.

[0103] The TX phase difference includes the superposition of the TX internal phase difference and the TX external phase difference. The foregoing embodiments have determined the TX internal phase difference, and thus the TX phase difference can be determined as long as the TX external phase difference is obtained.

[0104] It should be noted that the present application does not limit the order of obtaining the RX phase difference, the RX internal phase difference, and the TX internal phase difference. For example, the RX internal phase difference and the TX internal phase difference can be obtained first, and then the RX phase difference is obtained, that is, S330 is performed first, and then S310 and S320 are performed.

[0105] For obtaining the RX internal phase difference and the TX internal phase difference in S330, one step can be completed, or multiple steps can be completed. For example, the RX internal phase difference and the TX internal phase difference can be obtained simultaneously. For another example, the RX internal phase difference and the TX internal phase difference can be obtained at different times, and the present application does not limit the order of obtaining the RX internal phase difference and the TX internal phase difference.

[0106] For the scheme in S340, the embodiments of the present application can be completed in one step or multiple steps. For example, the RX phase difference, the RX internal phase difference, and the TX internal phase difference can be obtained first, and the TX phase difference can be calculated in one step. For another example, the RX phase difference and the RX internal phase difference can be obtained first, the RX external phase difference can be calculated, the TX internal phase difference can be obtained, and the TX phase difference can be calculated according to the RX external phase difference and the TX internal phase difference.

[0107] Those skilled in the art can understand that there are many combinations for obtaining the RX phase difference, the RX internal phase difference, and the TX internal phase difference, and determining the TX phase difference according to the RX phase difference, the RX internal phase difference, and the TX internal phase difference, and these combinations are all within the scope of the present application.

[0108] For different communication systems, the specific method for determining the TX external phase difference can be different.

[0109] In some embodiments, for a communication system with a “transmission-reception reciprocity” characteristic, since the phase difference of the path from the antenna to the network device is the same as the path from the network device to the antenna, that is, the TX external phase difference is equal to the RX external phase difference. For example, the TX phase difference can be determined by the following formula.

[0110] TX phase difference = RX phase difference - RX internal phase difference - TX internal phase difference

[0111] The parameters of the above formula can be referred to the foregoing, and will not be described herein. In addition, the TX phase difference can also be expressed as Delta_TX_Phase, the RX phase difference can also be expressed as Delta_RX_Phase, the RX internal phase difference can also be expressed as Delta_RX_Phase1, and the TX internal phase difference can also be expressed as Delta_TX_Phase1.

[0112] In some embodiments, for a communication system with a strict "transmission-reception reciprocity" characteristic, the TX external phase difference is equal to the RX external phase difference.

[0113] The method provided by the embodiments of the present application can be applied to a terminal device with multiple sets of transmission-reception hardware. The method splits the TX path into a TX path and an antenna-to-network device path, and accurately calculates the TX phase difference between different TX paths by obtaining the phase difference of the RX path, the phase difference of the TX path, and the overall RX phase difference. Applying the TX phase difference to the transmit diversity technology helps to enhance the uplink performance of the terminal device.

[0114] In some embodiments, the method 300 is applied to a time division duplexing (TDD) communication system.

[0115] A TDD communication system uses the same frequency, that is, the same channel, when transmitting and receiving signals. The uplink data and the downlink data are transmitted by time staggering, thereby avoiding interference between the uplink and the downlink. The TDD communication system has channel reciprocity, also known as "transmission-reception reciprocity".

[0116] The propagation loss of the same channel is the same. Therefore, in a TDD communication system or other communication system with "transmission-reception reciprocity" characteristics, the phase distortion of the uplink channel can be inferred from the phase distortion of the downlink channel. For example, the phase difference of the "transmission path" of an antenna to a network device can be determined according to the phase difference of the "reception path" of the network device to the antenna.

[0117] The signal processing method provided by the embodiments of the present application can be applied to a TDD communication system and is widely applicable. Since the TDD communication system has the "transmission-reception reciprocity" characteristic, the RX external phase difference is equal to the TX external phase difference, and the TX phase difference can be conveniently calculated.

[0118] In some embodiments, the method 200 further includes: transmitting a seventh signal and an eighth signal to the network device according to the TX phase difference.

[0119] The seventh signal and the eighth signal can be phase coherent. For example, a phase difference of the seventh signal and the eighth signal can be close to the TX phase difference. For another example, the phase difference of the seventh signal and the eighth signal has a fixed preset difference from the TX phase difference. Thus, the terminal device can control the signal strength received by the network device according to the TX phase difference.

[0120] The signal processing method provided in the embodiments of the present application can first accurately obtain the TX phase difference between the multiple TX paths, and then transmit multiple signals to the network device according to the TX phase difference. In the case that the network device is far away from the terminal device, the terminal device transmits multiple signals, and the network device can superimpose the signals to improve the signal strength. Therefore, the signal processing method provided in the embodiments of the present application can improve uplink coverage and enhance the uplink performance of the terminal device.

[0121] Further, transmitting the seventh signal and the eighth signal to the network device according to the TX phase difference can include: transmitting the seventh signal to the network device through the first transmission path; and transmitting the eighth signal to the network device through the second transmission path, where a phase difference between the eighth signal and the seventh signal is the TX phase difference.

[0122] When the phase difference between the eighth signal and the seventh signal is the TX phase difference, the eighth signal and the seventh signal are completely coherent. When the network device receives the eighth signal and the seventh signal, the eighth signal and the seventh signal are in the same phase, that is, there is almost no phase difference, and through superposition, the network device can obtain a signal with the maximum strength.

[0123] In the embodiments of the present application, multiple signals with the transmission phase difference being the TX phase difference are transmitted, so that the transmission phase is completely coherent, and the signal power received by the network device is maximum. Therefore, the signal processing method provided in the embodiments of the present application can improve uplink coverage and enhance the uplink performance of the terminal device.

[0124] The above describes the method embodiments of the present application in detail. Figure 3 , Figure 4 and Figure 5 The device embodiments of the present application are described below. The device embodiments correspond to the method embodiments, and thus the parts not described in detail can be referred to the method embodiments.

[0125] Figure 6 FIG. 6 shows a schematic block diagram of a signal processing device 600 provided in the embodiments of the present application.

[0126] Figure 6As shown, the signal processing apparatus 600 comprises a transceiving module 610 configured to receive a first probe signal from a network device; and a processing module 620 configured to determine a RX phase difference based on the first probe signal, wherein the RX phase difference comprises a phase difference between a first signal and a second signal, the first signal being the first probe signal received by the first RX path via the first antenna, the second signal being the first probe signal received by the second RX path via the second antenna; the processing module 620 is further configured to obtain a RX internal phase difference and a TX internal phase difference, wherein the RX internal phase difference comprises a phase difference between the first RX path and the second RX path, and the TX internal phase difference comprises a phase difference between the first TX path and the second TX path; and the processing module 620 is further configured to determine a TX phase difference based on the RX phase difference, the RX internal phase difference and the TX internal phase difference, wherein the TX phase difference comprises a phase difference between a first TX path and a second TX path, the first TX path comprising the first TX path and a path from the first antenna to the network device, and the second TX path comprising the second TX path and a path from the second antenna to the network device.

[0127] The transceiving module 610 and the processing module 620 can be implemented by software or by hardware. For example, the transceiving module 610 is taken as an example to introduce the implementation of the transceiving module 610. Similarly, the implementation of the processing module 620 can refer to the implementation of the transceiving module 610.

[0128] As an example of the software functional unit, the transceiving module 610 can comprise a code running on a computing instance. The computing instance can comprise at least one of a physical host (a computing device), a virtual machine, a container. Further, the computing instance can be one or more.

[0129] As an example of the hardware functional unit, the transceiving module 610 can comprise at least one computing device, such as a server. Alternatively, the transceiving module 610 can be a device implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), etc. The PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.

[0130] The application also provides a computing device 700. As shown in Figure 7 The computing device 700 includes a bus 702, a processor 704, a memory 706 and a communication interface 708. The processor 704, the memory 706 and the communication interface 708 communicate through the bus 702. The computing device 700 can be a server or a terminal device. It should be understood that the number of processors and memories in the computing device 700 is not limited.

[0131] The bus 702 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one line is used in the figure, but it does not mean that there is only one bus or one type of bus. The bus 702 can include a path for transmitting information between various components (for example, the memory 706, the processor 704, the communication interface 708) of the computing device 700.

[0132] The processor 704 can include any one or more of a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP), etc.

[0133] The memory 706 can include a volatile memory (for example, a random access memory (RAM)). The memory 706 can also include a non-volatile memory (for example, a read-only memory (ROM), a flash memory, a mechanical hard disk drive (HDD) or a solid state drive (SSD)).

[0134] The memory 706 stores executable program code, and the processor 704 executes the executable program code to respectively implement the functions of the aforementioned transceiver module 610 and the processing module 620, thereby implementing the signal processing method. That is, the memory 706 stores instructions for executing the signal processing method.

[0135] The communication interface 708 enables communication between the computing device 700 and other devices or communication networks using, for example, but not limited to, a module such as a network interface card, a transceiver, and the like.

[0136] The embodiment of the present application further provides a terminal device 120, comprising: a first RX channel 220, a first TX channel 230, a first antenna 260, a second RX channel 240, a second TX channel 250 and a second antenna 270, the first antenna 260 being in communication connection with the first RX channel 220 and the first TX channel 230, the second antenna 270 being in communication connection with the second RX channel 240 and the second TX channel 250; and a signal processing apparatus 600, the signal processing apparatus 600 being in communication connection with the first RX channel 220, the first TX channel 230, the second RX channel 240 and the second TX channel 250.

[0137] The embodiment of the present application does not limit the specific arrangement of the signal processing apparatus 600. For example, referring to Figure 2 , the signal processing apparatus 600 can be arranged on the radio frequency chip 210, or arranged outside the radio frequency chip 220.

[0138] The embodiment of the present application further provides a computer program product containing instructions. The computer program product can be software or a program product containing instructions, capable of running on a computing device or stored in any available medium. When the computer program product runs on at least one computing device, the at least one computing device is caused to execute the above-mentioned signal processing method.

[0139] The embodiment of the present application further provides a computer readable storage medium. The computer readable storage medium can be any available medium that the computing device can store or a data storage device such as a data center containing one or more available media. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk) and the like. The computer readable storage medium contains instructions, which instruct the computing device to execute the above-mentioned signal processing method.

[0140] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0141] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the modules is merely logical function division. There can be another division manner for the actual implementation, for example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or modules, and can be in electrical, mechanical or other forms.

[0142] The modules illustrated as separated components can or can not be physically separated, and the components illustrated as modules can or can not be physical modules, i.e., can be located in one place, or can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0143] In addition, the functional modules in each embodiment of the present application can be integrated into a processing module, or each module can be physically present alone, or two or more modules can be integrated into one module.

[0144] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program codes that can be stored in the medium.

[0145] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A signal processing method, characterized in that, The method is applied to a terminal device, the terminal device including a first receiving path, a first transmitting path, a first antenna, a second receiving path, a second transmitting path, and a second antenna, wherein the first antenna is communicatively connected to the first receiving path and the first transmitting path, and the second antenna is communicatively connected to the second receiving path and the second transmitting path, and the method includes: Receive the first probe signal from the network device; Based on the first detection signal, a receiving phase difference is determined, wherein the receiving phase difference includes the phase difference between the first signal and the second signal, the first signal being the first detection signal received by the first receiving path through the first antenna, and the second signal being the first detection signal received by the second receiving path through the second antenna. The receiving internal phase difference and the transmitting internal phase difference are obtained, wherein the receiving internal phase difference includes the phase difference between the first receiving path and the second receiving path, and the transmitting internal phase difference includes the phase difference between the first transmitting path and the second transmitting path; The transmission phase difference is determined based on the received phase difference, the internal received phase difference, and the internal transmitted phase difference. The transmission phase difference includes the phase difference between the first transmission path and the second transmission path. The first transmission path includes the first transmission path and the path from the first antenna to the network device. The second transmission path includes the second transmission path and the path from the second antenna to the network device.

2. The method according to claim 1, characterized in that, The acquisition of the received internal phase difference includes: A second detection signal is sent to the first receiving channel, and a third detection signal is sent to the second receiving channel, wherein the phase of the second detection signal and the phase of the third detection signal are the same; The internal phase difference of the receiver is determined based on the second detection signal and the third detection signal.

3. The method according to claim 2, characterized in that, The terminal device further includes a power divider, wherein sending a second detection signal to the first receiving path and sending a third detection signal to the second receiving path includes: Send a fourth detection signal to the power divider; The fourth detection signal is processed by the power divider to split it into the second detection signal and the third detection signal.

4. The method according to claim 3, characterized in that, The power divider is connected to the first receiving path in the same way as the power divider is connected to the second receiving path.

5. The method according to any one of claims 2 to 4, characterized in that, Determining the internal phase difference of the receiver based on the second detection signal and the third detection signal includes: The internal phase difference of the receiver is determined based on the third signal and the fourth signal, wherein the third signal is a signal coupled based on the second detection signal, and the fourth signal is a signal coupled based on the third detection signal.

6. The method according to any one of claims 1 to 4, characterized in that, The acquisition of the internal phase difference during transmission includes: A fifth detection signal is transmitted through the first transmission path, and a sixth detection signal is transmitted through the second transmission path, wherein the fifth detection signal and the sixth detection signal are in phase. The internal phase difference of the transmission is determined based on the fifth detection signal and the sixth detection signal.

7. The method according to claim 6, characterized in that, Determining the internal phase difference of the transmission based on the fifth detection signal and the sixth detection signal includes: The internal phase difference of the transmission is determined based on the fifth signal and the sixth signal, wherein the fifth signal is a signal coupled from the fifth detection signal, and the sixth signal is a signal coupled from the sixth detection signal.

8. The method according to any one of claims 1 to 4, characterized in that, The method is applied to a time-division duplex (TDD) communication system.

9. The method according to any one of claims 1 to 4, characterized in that, Also includes: Based on the transmission phase difference, the seventh and eighth signals are sent to the network device.

10. The method according to claim 9, characterized in that, The step of sending the seventh and eighth signals to the network device according to the transmission phase difference includes: The seventh signal is sent to the network device through the first transmission path; The eighth signal is transmitted to the network device via the second transmission path, wherein the phase difference between the eighth signal and the seventh signal is the transmission phase difference.

11. A signal processing apparatus, characterized in that, The device is applied to a terminal device, the terminal device including a first receiving path, a first transmitting path, a first antenna, a second receiving path, a second transmitting path, and a second antenna. The first antenna is communicatively connected to the first receiving path and the first transmitting path, and the second antenna is communicatively connected to the second receiving path and the second transmitting path. The device includes: The transceiver module is used to receive the first probe signal from the network device; The processing module is configured to determine the receiving phase difference based on the first detection signal, wherein the receiving phase difference includes the phase difference between the first signal and the second signal, the first signal being the first detection signal received by the first receiving path through the first antenna, and the second signal being the first detection signal received by the second receiving path through the second antenna. The processing module is further configured to acquire the receiving internal phase difference and the transmitting internal phase difference, wherein the receiving internal phase difference includes the phase difference between the first receiving path and the second receiving path, and the transmitting internal phase difference includes the phase difference between the first transmitting path and the second transmitting path; The processing module is further configured to determine a transmission phase difference based on the received phase difference, the internal received phase difference, and the internal transmitted phase difference, wherein the transmission phase difference includes the phase difference between a first transmission path and a second transmission path, the first transmission path includes the first transmission path and the path from the first antenna to the network device, and the second transmission path includes the second transmission path and the path from the second antenna to the network device.

12. The apparatus according to claim 11, characterized in that, The transceiver module is further configured to send a second detection signal to the first receiving channel and a third detection signal to the second receiving channel, wherein the phase of the second detection signal and the phase of the third detection signal are the same; The processing module is specifically used to determine the internal phase difference of the receiver based on the second detection signal and the third detection signal.

13. The apparatus according to claim 12, characterized in that, The terminal device also includes a power divider; wherein... The transceiver module is also used to send a fourth detection signal to the power divider; The processing module is specifically used to process the fourth detection signal through the power divider to split it into the second detection signal and the third detection signal.

14. The apparatus according to claim 13, characterized in that, The power divider is connected to the first receiving path in the same way as the power divider is connected to the second receiving path.

15. The apparatus according to any one of claims 12 to 14, characterized in that, The processing module is specifically used to determine the internal phase difference of the receiver based on the third signal and the fourth signal, wherein the third signal is a signal coupled based on the second detection signal, and the fourth signal is a signal coupled based on the third detection signal.

16. The apparatus according to any one of claims 11 to 14, characterized in that, The transceiver module is further configured to transmit a fifth detection signal through the first transmission path and a sixth detection signal through the second transmission path, wherein the fifth detection signal and the sixth detection signal are in phase; The processing module is specifically used to determine the internal phase difference of the transmission based on the fifth detection signal and the sixth detection signal.

17. The apparatus according to claim 16, characterized in that, The processing module is specifically used to determine the internal phase difference of the transmission based on the fifth signal and the sixth signal, wherein the fifth signal is a signal coupled from the fifth detection signal, and the sixth signal is a signal coupled from the sixth detection signal.

18. The apparatus according to any one of claims 11 to 14, characterized in that, The device is used in a time-division duplex (TDD) communication system.

19. The apparatus according to any one of claims 11 to 14, characterized in that, The transceiver module is also used to send a seventh signal and an eighth signal to the network device according to the transmission phase difference.

20. The apparatus according to claim 19, characterized in that, The transceiver module is specifically used to send the seventh signal to the network device through the first transmission path; The eighth signal is transmitted to the network device via the second transmission path, wherein the phase difference between the eighth signal and the seventh signal is the transmission phase difference.

21. A terminal device, characterized in that, include: A first receiving path, a first transmitting path, a first antenna, a second receiving path, a second transmitting path, and a second antenna, wherein the first antenna is communicatively connected to the first receiving path and the first transmitting path, and the second antenna is communicatively connected to the second receiving path and the second transmitting path; as well as The signal processing apparatus according to any one of claims 11 to 20, wherein the signal processing apparatus is communicatively connected to the first receiving path, the first transmitting path, the second receiving path, and the second transmitting path.

22. A computing device comprising a processor and a memory, the processor being configured to execute instructions stored in the memory to cause the computing device to perform the method as claimed in any one of claims 1 to 10.

23. A computer program product containing instructions, characterized in that, When the instructions are executed by the computing device, the computing device causes the computing device to perform the method as described in any one of claims 1 to 10.

24. A computer-readable storage medium, characterized in that, It includes computer program instructions, which, when executed by a computing device, cause the computing device to perform the method as described in any one of claims 1 to 10.

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